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Accès ouvert déclaré 2021 article

Search for the doubly charmed baryon $$ {\varXi}_{cc}^{+} $$ in the $$ {\varXi}_c^{+}{\pi}^{-}{\pi}^{+} $$ final state

24Citations signalées — pas une note de qualité
111Institutions déclarées
18Pays d’affiliation déclarés

Résumé fourni par la source

Abstract A search for the doubly charmed baryon $$ {\varXi}_{cc}^{+} $$ Ξcc+ is performed in the $$ {\varXi}_c^{+}{\pi}^{-}{\pi}^{+} $$ Ξc+π−π+ invariant-mass spectrum, where the $$ {\varXi}_c^{+} $$ Ξc+ baryon is reconstructed in thepK−π+final state. The study uses proton-proton collision data collected with the LHCb detector at a centre- of-mass energy of 13 TeV, corresponding to a total integrated luminosity of 5.4 fb−1. No significant signal is observed in the invariant-mass range of 3.4–3.8 GeV/c2. Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the $$ {\varXi}_{cc}^{++} $$ Ξcc++ →( $$ {\varXi}_c^{+} $$ Ξc+ → pK−π+)π+decay for different $$ {\varXi}_{cc}^{+} $$ Ξcc+ mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25 GeV/c. The results from this search are combined with a previously published search for the $$ {\varXi}_{cc}^{+} $$ Ξcc+ → $$ {\varLambda}_c^{+} $$ Λc+ K−π+decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620 MeV/c2, including systematic uncertainties. Taking into account the look-elsewhere effect in the 3.5–3.7 GeV/c2mass window, the combined global significance is 2.9 standard deviations including systematic uncertainties.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for the doubly charmed baryon $$ {\varXi}_{cc}^{+} $$ in the $$ {\varXi}_c^{+}{\pi}^{-}{\pi}^{+} $$ final state
Date Crossref
01/12/2021
Éditeur
Springer Science and Business Media LLC
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

National Institute for Subatomic PhysicsUniversity of WarwickUniversity of ZurichUniversity of LiverpoolUniversidade de Santiago de CompostelaUniversity of BristolCentre National de la Recherche ScientifiqueUniversité Clermont AuvergneInstitut National de Physique Nucléaire et de Physique des ParticulesDélégation Paris 7Université Paris CitéSorbonne UniversitéSorbonne Paris CitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesUniversity of MichiganIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversity of CincinnatiTU Dortmund UniversityEuropean Organization for Nuclear ResearchUniversity of GlasgowUniversitat de BarcelonaUniversity of ManchesterPetersburg Nuclear Physics InstituteUniversity of CambridgeUniversidade Federal do Rio de JaneiroUniversité Paris-SaclayLaboratoire de Physique des 2 Infinis Irène Joliot-CurieTsinghua UniversityIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeIstituto Nazionale di Fisica Nucleare, Sezione di FerraraHeidelberg UniversityKurchatov InstituteInstitute for High Energy PhysicsSyracuse UniversityYandex School of Data AnalysisAix-Marseille UniversitéCentre de physique des particules de MarseilleÉcole PolytechniqueLaboratoire Leprince-RinguetÉcole Polytechnique Fédérale de LausanneCentro Brasileiro de Pesquisas FísicasImperial College LondonIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaNational University of Science and TechnologyRWTH Aachen UniversityAGH University of KrakowIstituto Nazionale di Fisica Nucleare, Sezione di PisaIstituto Nazionale di Fisica Nucleare, Sezione di CagliariLomonosov Moscow State UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiUniversity of PaduaInstitute of Nuclear Physics, Polish Academy of SciencesWuhan UniversityUniversity of BirminghamUniversity of OxfordNational Research University Higher School of EconomicsUniversity of Maryland, College ParkSouth China Normal UniversityInstitute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaUniversitat Ramon LlullUniversity of Chinese Academy of SciencesIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaIstituto Nazionale di Fisica Nucleare, Roma Tor VergataInstitute of High Energy PhysicsUniversité Savoie Mont BlancUniversity of EdinburghHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringIstituto Nazionale di Fisica Nucleare, Sezione di BariUniversity of Bari Aldo MoroMassachusetts Institute of TechnologyLos Alamos National LaboratoryHunan UniversityUniversity of GroningenMaastricht UniversityEötvös Loránd UniversityInstitute for Nuclear ResearchUniversity College DublinKharkiv Institute of Physics and TechnologyIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaRutherford Appleton LaboratoryMonash UniversitySiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsUniversity of FerraraPeking UniversityState Key Laboratory of Nuclear Physics and TechnologyNational Centre for Nuclear ResearchPontifícia Universidade Católica do Rio de JaneiroCentral China Normal UniversityUniversitat de ValènciaInstituto de Física CorpuscularNational Research Tomsk State UniversityTomsk Polytechnic UniversityNovosibirsk State UniversityUniversity of CagliariIstituto Nazionale di Fisica Nucleare, Sezione di Roma IUniversity of RostockUniversity of MilanUniversidad Nacional de ColombiaUniversity of BonnScuola Normale SuperioreUniversity of PisaUniversity of Rome Tor VergataUniversity of BasilicataMax Planck Institute for Nuclear PhysicsUniversity of UrbinoP.N. Lebedev Physical Institute of the Russian Academy of Sciences

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Sujets associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research

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